Conor Dooley <co...@kernel.org> writes: > On Thu, Feb 29, 2024 at 01:10:56PM +0100, Alexandre Ghiti wrote: >> For now, we use stop_machine() to patch the text and when we use IPIs for >> remote icache flushes (which is emitted in patch_text_nosync()), the system >> hangs. >> >> So instead, make sure every CPU executes the stop_machine() patching >> function and emit a local icache flush there. >> >> Co-developed-by: Björn Töpel <bj...@rivosinc.com> >> Signed-off-by: Björn Töpel <bj...@rivosinc.com> >> Signed-off-by: Alexandre Ghiti <alexgh...@rivosinc.com> >> Reviewed-by: Andrea Parri <parri.and...@gmail.com> > > What commit does this fix?
Hmm. The bug is exposed when the AIA IPI are introduced, and used (instead of the firmware-based). I'm not sure this is something we'd like backported, but rather a prerequisite to AIA. @Anup @Alex WDYT?
